The RuntimeIdentifier platform 'win10-x64' and the PlatformTarget 'x86' must be compatible Error in MAUI

Question

When I run the MAUI UWP application I am getting below error

"The RuntimeIdentifier platform 'win10-x64' and the PlatformTarget 'x86' must be compatible"

I am setting configuration to x86 and I am using Visual Studio Pro 2022(64-bit)-Preview 17.3.0

Where I need to set RuntimeIdentifier platform 'win10-x64'

Answer 1

Hello,
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Where I need to set RuntimeIdentifier platform 'win10-x64'

The problem should be that you select x86 platform target to replace default Any Cpu. And this will cause RuntimeIdentifier x64 mismatch. The following is NETSdkError condition, you could navigate there by double clicking on the error message.

 <NETSdkError Condition="'$(PlatformTarget)' != 'AnyCPU' and !$(RuntimeIdentifier.ToUpperInvariant().Contains($(PlatformTarget.ToUpperInvariant())))"  
             ResourceName="CannotHaveRuntimeIdentifierPlatformMismatchPlatformTarget"  
             FormatArguments="$(RuntimeIdentifier);$(PlatformTarget)" />  

Please roll it back to AnyCPU by selecting from solution platforms list.

Update

You could add a extra PlatformTarget condition, when you set PlatformTarget as x64 it will jump into the first logic, otherwise jump into sceond one.

 <PropertyGroup Condition="$(TargetFramework.Contains('-windows')) and '$(Configuration)' == 'Debug' and $(PlatformTarget)=='x64'">  
   <Platforms>x64</Platforms>  
   <RuntimeIdentifier>win10-x64</RuntimeIdentifier>  
 </PropertyGroup>  
      
   <PropertyGroup Condition="$(TargetFramework.Contains('-windows')) and '$(Configuration)' == 'Debug' and $(PlatformTarget)=='x86'">  
   <Platforms>x86</Platforms>  
   <RuntimeIdentifier>win10-x86</RuntimeIdentifier>  
 </PropertyGroup>  

Thank you.

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